Stackby for AI agents
Stackby blends spreadsheets, databases, and automation so teams can track projects, contacts, or inventory in structured tables without a developer. Connect it once through Arc0, and your agent, or Claude, ChatGPT and Cursor, can use it through one MCP endpoint, limited to what each user approved.
What agents do in Stackby.
Add rows to a table
Create rows in a table when new records, like leads or tasks, need to be logged.
Check a table's rows before updating
List a table's rows to confirm which record to update before changing any values.
Confirm before deleting rows
Review the rows targeted for deletion before removing them, since the action can't be undone.
9 Stackby actions, graded by risk.
Every Stackby action is tagged read, write or destructive, so one policy covers the whole app and new actions inherit the right default.
read
6Look things up. Allowed by default.
- stackby.list_rowsList Rows
- stackby.list_viewsList Views
- stackby.list_stacksList Stacks
- stackby.list_tablesList Tables
- stackby.list_columnsList Columns
- stackby.list_workspacesList Workspaces
write
2Create and change things. Allow, or ask the user first.
- stackby.create_rowsCreate Rows
- stackby.update_rowsUpdate Rows
destructive
1Delete, cancel or archive. Ask first, or deny outright.
- stackby.delete_rowsDelete Rows
Stackby in three steps.
- 01Your users connect StackbyThey add their Stackby api key on Arc0 Connect, under your brand. It goes straight into the vault.
- 02You set the rulesReads run, writes like “create Rows” can wait for the user, and “delete Rows” can be denied outright.
- 03Any agent can actYour agent calls Stackby through the Arc0 SDK or MCP, and so can Claude, ChatGPT and Cursor. Every call lands on the audit log.
await arc0.policies.set('stackby', { read: 'allow', write: 'ask', // create_rows destructive: 'deny', // delete_rows }) # Claude Code: the same connection, one URL $ claude mcp add --transport http arc0 \ https://mcp.arc0.ai/u/u_8f2
How Stackby connects.
Users add their Stackby api key on Arc0 Connect. It is encrypted in the vault, never shown to the model, and each user can rotate or revoke it at any time.
The same Stackby connection serves your agent over MCP and your own backend over REST and the proxy, so a user connects once. How Arc0 handles credentials →
- AUTH
- API key
- CREDENTIALS
- Per-tenant encrypted vault
- MODEL SEES
- Results only, never credentials
- AUDIT LOG
- Every call, on every plan
Use Stackby from any agent.
ClaudeChatGPTCursor
Codex
VS CodeOpenAI Agents SDKClaude Agent SDK
Vercel AI SDK
Mastra
LangGraphMore databases and spreadsheets apps.
Stackby and Arc0, answered.
Can I use Stackby with Claude, ChatGPT or Cursor?
Yes. Connect Stackby to Arc0 once, then add your Arc0 MCP URL to Claude, ChatGPT, Cursor, Claude Code or any other remote-MCP client. Each assistant only gets the Stackby actions you allow.
How do users connect Stackby?
Users add their Stackby api key on Arc0 Connect. It is encrypted in the vault, never shown to the model, and each user can rotate or revoke it at any time.
Which Stackby actions can my agent take?
9 in total: 6 read, 2 write and 1 destructive, such as “create Rows”. Your policies decide which of them each agent may call.
Can I stop my agent from deleting things in Stackby?
Yes. Actions like “delete Rows” are graded destructive. Set destructive actions to deny, or to ask so the user approves each one, and blocked calls still show up on the audit log.
Can my own backend call Stackby too?
Yes. The same Stackby connection is available over REST and through the Arc0 proxy, so your product and your agent share one connection per user.
Plug Stackby into your agent.
Your users connect Stackby once, under your brand. Your agent gets 9 actions behind your policies, with every call on the record.
Free to build · MCP + REST · Audit log on every plan